Compound rail.



J. K. BOYD.

COMPOUND RAIL.

APPLICATION FILED MAR. 2. |918.

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Jamas n. Born, or wirnmsnune, rnnnsrnvnnra.

COMPOUNB RAIEL.

Application led March 2, 1918.

Compound Rails, of which the following is v a specification.

My invention relates to the construction of rails used in building thetracks of electric, steam and similar railways.

The weight of therolling stock of railways has enormously increased inrecent years, while the strength and durability of the track rails,although being constantly increased in size, has not kept pace with theincrease in the loads sustained bythe rails.

One reason for this is because ofthe impossibility of increasing thesizeof the head of the track rails and at the same time to work themetal of the rail head tothe eX- tent necessary to make the steel denseenough to have the desired wearing qualities with existing millequipment.

One obj ect of my invention is to provide a compound track rail ofimproved construction having novel means whereby the desired increase instrength, rigidity, and wearing qualities is obtained.

Another object of the invention is the provision in a compound rail ofnovel means whereby the load and side thrust of the rolling stock istransmitted from the rail head to the base anges of the rail girderthrough the clamping members and `without undue strain upon the railgirder web and liability of crescent breaks in the rail girder isthereby avoided and overcome.

Another object of this invention is to provide a compound track railhaving improved means whereby the necessity of frequent repairs isavoided and overcome and the cost vof maintenance of tracks employingsuch rails is lessened, and whereby renewal of the wearing parts of thetrack rails is easily and quickly effected withoutdisturbance or removalof the rails from the ties supporting the track rails on the road bed ofthe railway.

Another object of this invention is the provision of a compound trackrail of improved construction and having novel means whereby thedistribution of the metal in the rail is effected in such manner as tocomhine maximum strength and rigidity and Specification of LettersPatent.

Patented Inlay 7, ill.

serial No. 220,025.

wearing qualities in a rail 'of given size or weight.

Another object of the invention is to provide va compound track railofimproved construction, wherein the metal of the several parts of therail is distributed to facilitate the rolling operation and to work themetal in the wearing parts of the rail so as to increase the strengthand durability or re. sisance to wear of such wearing parts of the ral Afurther object of the invention is to provide a compound rail havingnovel means whereby the parts of the rail are assembled and detachablyheld in assembled relation.

A still further object of my invention is the provision of a compoundtrack rail hav ing the novel constructions, arrangements, andcombination of parts shown in the drawings, hereinafter described indetail, and specifically pointed out in the appended claims.

Referring now to the drawings, forming part of this specication, Figure1 is a sec-v tional end elevation showing a compound rail embodying myinvention, the section being taken on the line I-l of Fig. 3.

Fig. 2 is a sectional end elevation taken on the line ll--ll of F ig. 3.

Fig. 3 is a side elevation on a smaller scale, showing contiguous alinedtrack rails as assembled and joined in constructing railway tracksemploying my improved rail, and Fig. A is a similar side elevationshowing contiguous alined track rails, constructed in'accordance with myinvention. Fig. e is a continuation of Fig. 3, an intermediate and thevabutting ends of adjoining rails loeing shown by connecting Figs. 3 andA on the line X-X of these figures.

ln the accompanying drawings, the head A forming the wearing surface ofmy improved rail is shown supported vupon the liangedbase or girder B ofthe rail, being fastened to the girder by means of clamping membersformed by the clamping clips C and clamping splice bars D.

The rail head A comprises a wearing surface 2 having integrally formedmarginal flanges 3-3, the lower ends -ll of the flanges 3 being turnedoutward, substan tially at right angles to the other part of the flanges3, and the Hanges 3 forming a tapering groove inthe under surface of thehead A, the so-formed groove having inwardly 11o `clearly shown in Figs.1 and 2.

inclined or converging side surfaces 5, as is An integral projection orridge 9 is pro-y vided on the girder VB above the flanges 8 8, thisprojection having inwardly and upwardly sloping side surfaces 10 10 andhaving a contour which preferably is made to neatly fit within therecess or groove in the lower face of the rail head A and to have asurface Contact therewith. (See Figs. 1 and 2.)

The flanges 7 and 8 taper, the sloping up- .per vsurface 11 of thebottom flanges 7 and under surface 12 of the top flanges 8 beinginclined at oppositeangles to provide the clearance necessary in therolling operation. The ends 4 4 of the flanges 3 on the rail head A alsotaper, the sloping upper surface 13 thereof being inclined and extendingin a plane parallel to the'plane of the upper surfaces 11 of the bottomflanges 7.

The clamping clips C by which. the rail head A is detachably secured inplace on top of the girder B have a web 14 whose end or girder engagingsurfaces 15, 16 are oppositely inclined at the same angle as the uppersurface 11 of the bottom flanges 7 and under surface 12 of the topflanges 8 of the 'rder B, and the upper edge of the web 14 as a bentflange 17 which coacts with the end of the web 12 in forming a doubletaper groove 18- The sloping side surfaces 16 and 2O of the grooves 18are oppositely inclined and extend in planes parallel with the surface13 of the rail head A and surface 12 of the girder anges 8. The grooves18 are made deep enough to permit of adjustment so as to tightly wedgethe head A in place on the girder B when the nuts 21 are tightened onthe fastening bolts 22. Registering holes 23 and 24 are provided in theweb of theclips andrail girder B for the bolts 22.

The clamping splice plates D have a web 25 with a foot 26 on one and aflange 27 on the other edge thereof. IlChe sloping surfaces. 28 and 29of the splice plates D (like the corresponding surfaces of the clips C)are oppositely inclined, and have an included angle the same as thatbetween the surfaces 11 and 12 of the girder B.

The flange 27 on the-upper edge of the splice plates D, is bent to forma double taper groove 30, being formed in the same manner as the groovein the clips C, and for the same purpose, and registering holes 23, 24are provided in the web of the splice plates D and girder B for thefastening bolts 22.

The heads and the girders may and preferably will be made of equallength, and assembled to form broken joints, z'- ethel joint between theabutting ends of the rail heads A will not be in line with the jointbe'- tween the abutting ends of the rail girders B. (See Figs. 3 and 4.)

The splice plates D, as will be seen in Figs. 3 and 4, are of sufficientlength to provide for two bolts for each end of abutting rail girders,while the clips C preferably are comparatively short, and of onlysufficient length to receive one clamping bolt. It will be obvious,however, that they may be made longer when found desirable or necessary.The clamping splice plates D fasten the rail heads A to the girders Badjacent to the abutting ends of adjoining girders, anda series of theclips C will be employed to fas,

ten the head to the girders at separated points between the spliceplates D located at the opposite ends of the girders. j

It will be noted that the surfaces 15, 28 of the clips C and spliceplates D bear on the upper inclined surfaces 11 of the bottom flanges 7of the girder B, and that the loads put upon the rail head will betransmitted through the clips and splice plates to the bottom flanges ofthe rail and, through the bottom flanges 7, to the ties supporting thetrack rails. This is an important feature of my invention and by suchconstruction the rail is strengthened and stiflened, so as to readilyresist the enormous side thrust put upon the rails by the rolling stockand to substantially eliminate the occurrence of crescent breaks in thebase flanges of the rails, an ever present danger in both T-head and in.compound rails, as heretofore made- Care should be taken to make thespacing of the bolt holes 24 in the web of the rail the rail totemporarily fasten together the ends of a broken rail -girder or railhead by substituting a pair of splice plates D for two or more of theclamps C The advantages of my invention will be appreciated by thoseskilled in the art. The head of the rail is designed so as to be readilyrolled, and the contacting surfaces between the head A and girder B areof a contour which enables the parts to be made within the usual workinglimits and at the same time provide a slight draw on the parts intightening the clamps and clamping splice plates on the rail.

The rail head is of comparatively light section, so that it is possibleto vget sufficient work on the metal in rolling the head necessary toproduce the desired dense metal having the necessary wearing qualities.

' The composition of the metal in the head, which can be different fromthat in the base or girder, may be ordinary rail steel or of neeaeea a;

high carbon, alloy, or heat treated steels, of a quality-not possible touse with ordinary integrally formed track rails. rihe girder may be madeof any grade of steel which v will afford the necessary strength andelasticitywithout taking into account the wearing qualities, as isnecessary in an integrally formed rail.

Modications in the construction and arrangement of the parte may be madewithout departing from my invention as dened in the appended claims.

l. In a compound rail the combination oi a rolled metal head having'integral flanges, said iianges forming a longitudinal groove in thebottom surface of the head and having tapering horizontally entendinglower edges, an integral rolled metal girder having a web and taperinghorizontally extending top and-bottom flanges, clamping members torsecuring the rail head on the girder, said clamping members havinsloping surfaces engaging with oposite y sloping surfaces on thetapering anges of the head and the top and bottom flanges of the girderin securing the rail head to the girder, and means for :fastening theclamping members in holding engagenient with the danges.

clamping members having sloping surfacesengaging with oppositely slopingsurfaces on the taperinganges of the head and the top and bottom angesof the gird'erin securing the rail head to the girder, part of saidseries of pairs of clamping mem bers being arranged to connect theabutting ends of said girders, and means for fastening the clampingmembers in holding engagement with the ilanges.

8. ln a compound rail,` the combination -o ak rolled metal head havingintegral flanges, said flanges forming a longitudinal groove in thebottom surface of the head and having tapering horizontally extending,lower edges, an integral rolled metal girder having a web andtaperinghorizontally extending top and bottom flanges, a series of pairsof clamping members for securing the rail head on the girder, saidclamping members having sloping surfaces engaging with oppositelyVsloping surfaces on the tapering flanges of the head and the top andbottom iiangesof the girder in securing the rail head to the girder,part of said series having of pairs of clamping members being arrangedto connect the abutting ends of said girders and. said heads, and means`for fastening the clamping members in holding engagement with theflanges.

in a compound rail,A the combination of a rolled metal head havingintegral danges, said iangesiorming a longitudinal groove in the bottomsurface of the head and having tapering horizontally extending loweredges., an integral rolled metal girder having a web andv taperinghorizontally er.- tending top and bottom danges, a ridge on said girderabove the top iianges thereo, said ridge having converging sides ttingthe inclined side surfaces of the groove in said rail head, clampingmembers for securing the rail head on the girder, said clamping membershaving sloping surfaces env gaging with oppositely sloping surfaces on.the 'tapering flanges of the head and the top and bottom liangcs of thevgirder in securing the rail head to the girder, and means for fasteningthe clamping members in holding engagement with the danges.

5. ln a compound rail, the combination of an integrally formed rolledsteel girder, said girder having a web and tapering oppositely extendingtop and bottom anges with a longitudinal ridge above the top flangesoithe girder, said ridge having upwardly and inwardly converging sides,an.

integrally Aformed rolled steel head on top of said girder, said headhaving a longi tudinal groove on the bottom thereof of the same contouras said ridge and outwardly extending tapering :flanges the lower edgesIor the head, a series of clip astenings for securing the head to thegirder, said fastenings havingv a double taper groove in one sideengagin with the oppositely inclined surfaces or the langes on said headand top anges of the girder, and having a foot engaging the inclinedupper surface of the lower ange of said girder, and means forl fasteningthe clips in holding engagement lwiththe anges.

6. lin a `compound rail, the combination of`^an integrally formed rolledsteel girder, said girder having a web and tapering oppositely extendingtop and bottom flanges with a longitudinal ridge above the top flangesof the girder, said ridge having upwardly converging sides, -anintegrally formed rolled steel head on top of said girder, said headhaving a longitudinal groove on the bottom thereof of the same contouras said ridge, and outwardly eX- tending ytapering flanges at the loweredges of the head, aseries of clip fastenings for ree' securing the headto the girder, said clips a double taper groove in one side engagingwith the. oppositelv inclined suru lfaces of the flanges on said headand top flanges of the girder, and having a foot engaging the inclinedupper surface of the lower flange of `said girder, registering holes insaid clips and Ygirder and bolts extending through said registeringholes for fastening said clips to the girder in holding engagement withthe anges. on the head and girder.

7. In a compound rail, the combination of aiianged head having alongitudinal groove in the-bottom surface thereof, said groove havinginclined sides, a lianged girder having a longitudinal ridge on itsupper surface, said ridge having the contour of said groove, and aseries of pairs of clips for fastening the head on the girder, saidclips having a groove with inclined sides in one face thereof in whichthe contacting anges on the head and girder are positioned, and

means for fastening the clips to the rail girder, said meansbeingarranged to draw the .clips into tight holding engagement with thecontacting ianges of said head'and girder.

8. ln a compound rail, the combination of a flanged head having alongitudinal groove in the bottom surface thereof, said groovehavinginclined sides, a'anged 'girder hav-A ing a longitudinal ridge ofthe contour of said'groove, and a series of-vpairs of clips forfastening the head on the girder, said clips having a groove withinclined sides in one face thereof in which the contacting flanges onthe head and girder are positioned, part of said clips forming clampingsplice plates for connecting the abutting ends of the rail girders, andmeans for fastening the clips to the lrail girdensaid means beingarranged to draw the clips into tight holdingengagement with thecontacting flanges of said head and girder.

9. ln a compound rail, the combination of an integral rolled steelgirder having a ,web and oppositely extending top and bottom anges and alongitudinal ridge above the top flanges of the girder,said ridge havingconverging sides, an integrally formed rolled steel headon top of saidgirder, said head having a longitudinal groove on the bottom thereof ofthe same contour as said ridge and having outwardly extending flanges atthe lower edges of the head, a series of clip fastenings for securingthe flanges on the head to the top anges of said grder, said clipshaving a double taper groove in one side engaging with 'the oppositelyinclined surfaces' of adgacentanges on said head and girder to securethe headv on the girder, and means for fastening the rail clips inholding position on the garder.

naeaeea l0'. ln a compound rail, the combination of a rolled metal headhaving integral lflanges, said langes forming a longitudinal groove inthe bottom surface of the head and having tapering horizontallyextending lower edges, an integral rolled metal 'rder having a web andtapering horizontal y extending top and bottom flanges, clamping membersfor securing the rail head on the girder, said clamping members havingsloping'surfaces engaging with op ositely slo ing surfaces on thetapering anges of t e head and the top flanges of the girder insecuring' the rail head to the girder, and means for fastening theclampingmembers in holding engagement with the franges.

11.l ln a compound rail, the combination of a rolled metal head havingintegral flanges, said flanges forming a longitudmal groove in thebottom surface of the head and having tapering horizontally extendinglower edges, an integral rolled metal girder having a web and taperinghorizontallyr extending top and bottom flanges, a ridge on said girderabove the'top flanges thereof, said ridge having converging sidesfitting the inclinedside surfaces of the groove in said rail head,clamping members for securing the rail head on the girder, said clamp'-ing members having sloping surfaces engag ing with o positely slopingsurfaces on the tapering ilinges of the head and the top flanges of thegirder in' securingthe rail head to the girder, and means' for fasteningthe clamping members, in holding engagement with the flanges.

12. In a compoundrail, thecolnbination of an integrally formed rolledsteel g'lrder, said girder having a web and tapering oppositelyextending topan'd bottom Hanges with a longitudinal ridge above the-"topflanges of the .girder, said ridge having-upwardly and inwardlyconverging sides, an integrally formed roller steel head on-'top of saidgirder, said head having a longitudinal groove on the bottom thereof ofthe same contour as said ridge andoutwardly extending tapering flanges`atthe lower edges of the head, a series of clip fastenings for securingthe head to the girder, said fastenings having a double taper groove inone side engaging with the oppositely inclined surfaces of the anges onsaid head and top flanges of the girder, and means for fastening theclips in holding engagement with theptlanges.

ln testimony whereof I have hereunto set my hand. y

JAMES K. BOYD.`

@spies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents,

Washington, D. C.

